It’s one thing for political pranksters to play dirty tricks on corporations whose agendas they oppose, but it’s quite another for their shenanigans to be carried out with the ingenuity and humor of comic performance art. Take the Yes Men, Mike Bonanno and Andy Bichlbaum (not their real names), subversive political satirists who dream up elaborate stunts to embarrass climate-change deniers.

A favorite prank is to call a news conference at which they impersonate corporate and government officials and announce a radical shift of agenda, then watch the fallout when their hoaxes are accepted as genuine and their opponents scramble to set the record straight.

During the making of the new movie, Mr. Bonanno’s wife gives birth to the couple’s third child and they move to Scotland. Mr. Bichlbaum, who is gay, meets a boyfriend with whom he wants to spend the rest of his life. But that relationship breaks up when the Yes Men’s partnership interferes. The Yes Men describe themselves as each other’s “perfect enablers.”

The action that causes them the most trouble in the new film is a 2009 prank designed to make fools of the U.S. Chamber of Commerce, the vast lobbying agency that the Yes Men contend is overwhelmingly controlled by the oil industry. The Yes Men rent a space in the National Press Club in Washington and hold a briefing at which Mr. Bichlbaum impersonates the communications director for the Chamber of Commerce and reverses its position, voicing support for climate change legislation pending in Congress. So irate were the chamber’s leaders that the group sued the Yes Men for “commercial identity theft masquerading as social activism.” Four years later, the lawsuit was dropped.

At an international climate-change conference in 2009 in Copenhagen, they collaborate with Benadette Chandia Kodili, a Ugandan activist, in announcing that Canada has agreed to pay off billions of dollars in “climate debts” to third world countries that contribute less to carbon dioxide emissions than industrialized ones. Canada is cornered into denying that any such plans exist.

In the silliest prank, they pose as officials with the Energy Department the Bureau of Indian Affairs at a Homeland Security conference and declare their intention to have the United States rely on renewable energy sources for 100 percent of its needs by 2030. Power plants would be turned over to Native Americans as partial reparation for “genocide.” Then the attendees, who include defense contractors, are asked to form a circle and do an Indian dance. The compliant guests obey instructions, and the ritual that follows is a delectable moment of pure farce.